What do I do next to coronations within the winter? ...
Answers: If you mean carnations, they are considered perennials and should come hindmost next year. After the first complex frost trim back the insensible stuff and mulch a bit to protect them from drying out over the winter. They should come back subsequent year, so be sure you know where they are and don't verbs them thinking they're weeds.
do you suggest carnations? if so - Watch for carnation rust and aphids using dusts in nouns to sprays during winter. continue to propogate perpetual flowering carnations by cuttings, and pot up rooted cuttings.